Finding the Fourth Proportional to 76,453.74, 105,501.06 and 42,459.48

Step by Step Solution

1. Step 1: Write the proportion equation
   76,453.74 : 105,501.06 = 42,459.48 : x
2. Step 2: Convert to fraction form
   76,453.74/105,501.06 = 42,459.48/x
3. Step 3: Cross multiply
   76,453.74x = 105,501.06 × 42,459.48
4. Step 4: Simplify right side
   76,453.74x = 4,479,520,147.05
5. Step 5: Solve for x
   x = 4,479,520,147.05/76,453.74
6. Step 6: Final answer
   x = 58,591.25